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Ray Set visibility: public 575a81d 10d ago
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{
  "schema_version": 1,
  "type": "component",
  "slug": "acs709llftr-20bb-t",
  "title": "ACS709LLFTR-20BB-T",
  "brief": "Allegro MicroSystems, LLC Current Sensors, QSOP-24. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "sensors",
    "acs709llftr-20bb-t",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "ACS709LLFTR-20BB-T",
    "manufacturer": "Allegro MicroSystems, LLC",
    "package": "QSOP-24",
    "pin_count": 24,
    "category": "Sensors",
    "subcategory": "Current Sensors",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/75f8fca62f964b0fb06fa5f05793778a.pdf",
    "parts": {
      "symbol": "acs709llftr-20bb-t.kicad_sym",
      "footprint": "acs709llftr-20bb-t.kicad_mod",
      "model_3d": "acs709llftr-20bb-t-hero.glb",
      "model_3d_plain": "acs709llftr-20bb-t-etched.glb",
      "model_3d_step": "acs709llftr-20bb-t-etched.step",
      "model_3d_step_plain": "acs709llftr-20bb-t.step",
      "lbr": "acs709llftr-20bb-t.lbr"
    },
    "distributor_links": {
      "lcsc": "C459302",
      "digikey": "620-1337-2-ND",
      "mouser": "250-709LLFTR20BBT"
    },
    "distributor_check": {
      "checked_at": "2026-10-23T12:11:45Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "620-1337-2-ND",
        "status": "found",
        "lifecycle": "Not For New Designs"
      },
      "mouser": {
        "pn": "250-709LLFTR20BBT",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "IP+",
        "type": "passive",
        "description": "Sensed current copper conduction path terminal, fused internally and looped to the IP- pins; supports unidirectional or bidirectional current flow (pins 1 through 6)."
      },
      {
        "number": "2",
        "name": "IP+",
        "type": "passive",
        "description": "Sensed current copper conduction path terminal, fused internally and looped to the IP- pins; supports unidirectional or bidirectional current flow (pins 1 through 6)."
      },
      {
        "number": "3",
        "name": "IP+",
        "type": "passive",
        "description": "Sensed current copper conduction path terminal, fused internally and looped to the IP- pins; supports unidirectional or bidirectional current flow (pins 1 through 6)."
      },
      {
        "number": "4",
        "name": "IP+",
        "type": "passive",
        "description": "Sensed current copper conduction path terminal, fused internally and looped to the IP- pins; supports unidirectional or bidirectional current flow (pins 1 through 6)."
      },
      {
        "number": "5",
        "name": "IP+",
        "type": "passive",
        "description": "Sensed current copper conduction path terminal, fused internally and looped to the IP- pins; supports unidirectional or bidirectional current flow (pins 1 through 6)."
      },
      {
        "number": "6",
        "name": "IP+",
        "type": "passive",
        "description": "Sensed current copper conduction path terminal, fused internally and looped to the IP- pins; supports unidirectional or bidirectional current flow (pins 1 through 6)."
      },
      {
        "number": "7",
        "name": "IP–",
        "type": "passive",
        "description": "Sensed current copper conduction path terminal, fused internally and looped to the IP+ pins; supports unidirectional or bidirectional current flow (pins 7 through 12)."
      },
      {
        "number": "8",
        "name": "IP–",
        "type": "passive",
        "description": "Sensed current copper conduction path terminal, fused internally and looped to the IP+ pins; supports unidirectional or bidirectional current flow (pins 7 through 12)."
      },
      {
        "number": "9",
        "name": "IP–",
        "type": "passive",
        "description": "Sensed current copper conduction path terminal, fused internally and looped to the IP+ pins; supports unidirectional or bidirectional current flow (pins 7 through 12)."
      },
      {
        "number": "10",
        "name": "IP–",
        "type": "passive",
        "description": "Sensed current copper conduction path terminal, fused internally and looped to the IP+ pins; supports unidirectional or bidirectional current flow (pins 7 through 12)."
      },
      {
        "number": "11",
        "name": "IP–",
        "type": "passive",
        "description": "Sensed current copper conduction path terminal, fused internally and looped to the IP+ pins; supports unidirectional or bidirectional current flow (pins 7 through 12)."
      },
      {
        "number": "12",
        "name": "IP–",
        "type": "passive",
        "description": "Sensed current copper conduction path terminal, fused internally and looped to the IP+ pins; supports unidirectional or bidirectional current flow (pins 7 through 12)."
      },
      {
        "number": "13",
        "name": "NC",
        "type": "unconnected",
        "description": "No connection."
      },
      {
        "number": "14",
        "name": "NC",
        "type": "unconnected",
        "description": "No connection."
      },
      {
        "number": "15",
        "name": "GND",
        "type": "power_in",
        "description": "Device ground connection."
      },
      {
        "number": "16",
        "name": "VZCR",
        "type": "output",
        "description": "Voltage reference output giving the zero current (0 A) reference, equal to 0.5 × VCC and scaling with VCC; can source 3 mA minimum and sink 50 µA minimum."
      },
      {
        "number": "17",
        "name": "FILTER",
        "type": "passive",
        "description": "Terminal for an external capacitor to GND that sets the device bandwidth; absolute maximum voltage is 8 V."
      },
      {
        "number": "18",
        "name": "VIOUT",
        "type": "output",
        "description": "Analog output voltage proportional to the current flowing between the IP+ and IP- pins; load must be at least 10 kΩ and no more than 10 nF to GND."
      },
      {
        "number": "19",
        "name": "FAULT",
        "type": "output",
        "description": "Active-low open-drain overcurrent fault output that goes low when the current between IP+ and IP- exceeds the fault threshold; VFAULT is 0.4 V maximum at 1 mA sink."
      },
      {
        "number": "20",
        "name": "VCC",
        "type": "power_in",
        "description": "Supply voltage pin, operating range 3 to 5.5 V (absolute maximum 8 V)."
      },
      {
        "number": "21",
        "name": "VOC",
        "type": "input",
        "description": "Overcurrent input whose analog voltage sets the overcurrent fault threshold, valid from 0.25×VCC to 0.4×VCC (absolute maximum 8 V)."
      },
      {
        "number": "22",
        "name": "FAULT_EN",
        "type": "input",
        "description": "Enables overcurrent faulting when high and resets FAULT when low; VIH is 0.8×VCC minimum and VIL is 0.1×VCC maximum."
      },
      {
        "number": "23",
        "name": "NC",
        "type": "unconnected",
        "description": "No connection."
      },
      {
        "number": "24",
        "name": "NC",
        "type": "unconnected",
        "description": "No connection."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-sonnet-5-5",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: Datasheet gives pin-type classification implicitly; IP+/IP– typed as passive and FILTER typed as pas"
        ],
        "pages_sent": 20,
        "cost_usd": 0.1984,
        "at": "2026-10-23T12:11:27"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/75f8fca62f964b0fb06fa5f05793778a.pdf",
        "pages": 20,
        "sha256": "01ee6a3818374c8e",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 24,
        "described": 24,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "acs709llftr-20bb-t.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6,
          8.65,
          1.72
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "d2244e3f2eff53b6985f22b8c8a44bb319a1973a6a440b2597d6d67813b09338",
        "checked": "2026-10-23",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "acs709llftr-20bb-t-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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          8.65,
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        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "e8412f8a4d38cc28e89c132123459a27536a7a9a91c63ac5d2f25f9669760724",
        "checked": "2026-10-23",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Allegro MicroSystems, LLC",
      "Package": "QSOP-24",
      "Category": "Sensors",
      "Pins": "24"
    },
    "appearance": {
      "contacts": {
        "quote": "[1] -S denotes the lead-free construction with tin-silver-based solder bumps. [2] -T denotes Pb-contained construction with Pb-based solder bumps. Operating performance of -T and -S devices are identi",
        "page": 2,
        "doc": "ds.pdf",
        "plating": "tin"
      },
      "version": 1,
      "datasheet_sha256": "01ee6a3818374c8e259fb1b70810cdeeee133e233b18297943c1b7f840527a34"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "01ee6a3818374c8e259fb1b70810cdeeee133e233b18297943c1b7f840527a34",
      "rows": [
        {
          "name": "Supply Voltage",
          "symbol": "VCC",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 3,
          "typ": null,
          "max": 5.5,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Nominal Supply Voltage",
          "symbol": "VCCN",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 5,
          "max": null,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Supply Current",
          "symbol": "ICC",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 11,
          "max": 14.5,
          "conditions": "VIOUT open, FAULT pin high",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Output Capacitance Load",
          "symbol": "CLOAD",
          "kind": "recommended_operating",
          "unit": "nF",
          "min": null,
          "typ": null,
          "max": 10,
          "conditions": "VIOUT pin to GND",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Output Resistive Load",
          "symbol": "RLOAD",
          "kind": "recommended_operating",
          "unit": "kΩ",
          "min": 10,
          "typ": null,
          "max": null,
          "conditions": "VIOUT pin to GND",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Full Range Linearity",
          "symbol": "ELIN",
          "kind": "electrical",
          "unit": "%",
          "min": -0.75,
          "typ": 0.25,
          "max": 0.75,
          "conditions": "IP = ±IP0A",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Symmetry",
          "symbol": "ESYM",
          "kind": "electrical",
          "unit": "%",
          "min": 99.1,
          "typ": 100,
          "max": 100.9,
          "conditions": "IP = ±IP0A",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Setting Voltage for Overcurrent Switch Point",
          "symbol": "VOC",
          "kind": "electrical",
          "unit": "xVCC",
          "min": 0.25,
          "typ": null,
          "max": 0.4,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Overcurrent FAULT Pin Output Voltage",
          "symbol": "VFAULT",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.4,
          "conditions": "1 mA sink current at FAULT pin",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "FAULT_EN Input Low Voltage Threshold",
          "symbol": "VIL",
          "kind": "electrical",
          "unit": "xVCC",
          "min": null,
          "typ": null,
          "max": 0.1,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "FAULT_EN Input High Voltage Threshold",
          "symbol": "VIH",
          "kind": "electrical",
          "unit": "xVCC",
          "min": 0.8,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Overcurrent Input Pin Resistance",
          "symbol": "ROC",
          "kind": "electrical",
          "unit": "MΩ",
          "min": 2,
          "typ": null,
          "max": null,
          "conditions": "TA = 25°C, VOC pin to GND",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Voltage Reference Output Load Current (source)",
          "symbol": "IZCR",
          "kind": "electrical",
          "unit": "mA",
          "min": 3,
          "typ": null,
          "max": null,
          "conditions": "Source current",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Voltage Reference Output Load Current (sink)",
          "symbol": "IZCR",
          "kind": "electrical",
          "unit": "µA",
          "min": 50,
          "typ": null,
          "max": null,
          "conditions": "Sink current",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Voltage Reference Output",
          "symbol": "VZCR",
          "kind": "electrical",
          "unit": "xVCC",
          "min": null,
          "typ": 0.5,
          "max": null,
          "conditions": "TA = 25 °C",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Voltage Reference Output Drift",
          "symbol": "ΔVZCR",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 10,
          "max": null,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Optimized Accuracy Range",
          "symbol": "IP(OA)",
          "kind": "electrical",
          "unit": "A",
          "min": -20,
          "typ": null,
          "max": 20,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Linear Sensing Range",
          "symbol": "IP(LIN)",
          "kind": "electrical",
          "unit": "A",
          "min": -37.5,
          "typ": null,
          "max": 37.5,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Sensitivity",
          "symbol": "Sens",
          "kind": "electrical",
          "unit": "mV/A",
          "min": 54.5,
          "typ": null,
          "max": 58,
          "conditions": "IP = 12.5 A, TA = 25°C to 150°C",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Sensitivity",
          "symbol": "Sens",
          "kind": "electrical",
          "unit": "mV/A",
          "min": 54.5,
          "typ": null,
          "max": 58.5,
          "conditions": "IP = 12.5 A, TA = – 40°C to 25°C",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Sensitivity",
          "symbol": "Sens",
          "kind": "electrical",
          "unit": "mV/A",
          "min": null,
          "typ": 56,
          "max": null,
          "conditions": "IP = 12.5 A, TA = 25°C",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Electrical Offset Voltage",
          "symbol": "VOE",
          "kind": "electrical",
          "unit": "mV",
          "min": -25,
          "typ": null,
          "max": 25,
          "conditions": "IP = 0 A, TA = 25°C to 150°C",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Electrical Offset Voltage",
          "symbol": "VOE",
          "kind": "electrical",
          "unit": "mV",
          "min": -40,
          "typ": null,
          "max": 40,
          "conditions": "IP = 0 A, TA = – 40°C to 25°C",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Electrical Offset Voltage",
          "symbol": "VOE",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 5,
          "max": null,
          "conditions": "IP = 0 A, TA = 25°C (±5)",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Total Output Error",
          "symbol": "ETOT",
          "kind": "electrical",
          "unit": "%",
          "min": null,
          "typ": 2,
          "max": null,
          "conditions": "Tested at IP =12.5 A, IP applied for 5 ms, TA = 25°C to 150°C (±2)",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Total Output Error",
          "symbol": "ETOT",
          "kind": "electrical",
          "unit": "%",
          "min": null,
          "typ": 3,
          "max": null,
          "conditions": "Tested at IP =12.5 A, IP applied for 5 ms, TA = – 40°C to 25°C (±3)",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Noise",
          "symbol": "VNOISE(rms)",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 1.5,
          "max": null,
          "conditions": "TA = 25°C, Sens = 56 mV/A, Cf = 0, CLOAD = 4.7 nF, RLOAD open",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Magnetic Coupling to Hall Element",
          "symbol": "MCHALL",
          "kind": "electrical",
          "unit": "G/A",
          "min": null,
          "typ": 9.5,
          "max": null,
          "conditions": "Current flowing from IP+ to IP– pins",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Internal Filter Resistance",
          "symbol": "RF(INT)",
          "kind": "electrical",
          "unit": "kΩ",
          "min": null,
          "typ": 1.7,
          "max": null,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Primary Conductor Resistance",
          "symbol": "RPRIMARY",
          "kind": "electrical",
          "unit": "mΩ",
          "min": null,
          "typ": 1.1,
          "max": null,
          "conditions": "TA = 25°C",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Bidirectional Quiescent Output",
          "symbol": "VOUT(QBI)",
          "kind": "electrical",
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